Carbon brush for miniature motors and method of making same

Details Carbon brush for miniature motors and method of making same Carbon brush for miniature motors and method of making same

1990-04-05

1992-08-04

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310252, H02K 1300, H01R 3920, H01R 3924, H01R 3926

Patent

active

051361981

ABSTRACT:
A carbon brush used for a miniature motor, which has a permanent magnet field and is caused to rotate through current commutation via a commutator, formed by bonding graphite powder and used for making sliding contact with the commutator for current commutation, in which the carbon brush is a metal-plated graphite brush formed by pressure-forming and sintering the graphite powder after covering particles of the graphite powder with a metallic layer; the graphite powder used for the metal-plated graphite brush being purified to reduce the ash content of the graphite powder to 0.05 wt. %, and the method of making the same.

REFERENCES:
patent: 3996408 (1976-12-01), Fridman et al.
patent: 4780112 (1988-10-01), Lloyd et al.

Affiliated with

Also associated with

Rating

Carbon brush for miniature motors and method of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbon brush for miniature motors and method of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon brush for miniature motors and method of making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-780487